91265923 has 8 divisors (see below), whose sum is σ = 105337440. Its totient is φ = 77452800.

The previous prime is 91265917. The next prime is 91265957. The reversal of 91265923 is 32956219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91265923 - 2⁹ = 91265411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91265983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63838 + ... + 65251.

It is an arithmetic number, because the mean of its divisors is an integer number (13167180).

Almost surely, 2^91265923 is an apocalyptic number.

91265923 is a deficient number, since it is larger than the sum of its proper divisors (14071517).

91265923 is a wasteful number, since it uses less digits than its factorization.

91265923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129197.

The product of its digits is 29160, while the sum is 37.

The square root of 91265923 is about 9553.3199988276. The cubic root of 91265923 is about 450.2318525391.

The spelling of 91265923 in words is "ninety-one million, two hundred sixty-five thousand, nine hundred twenty-three".